Scientists produced 3-D looks at shark’s guts. By Veronique Greenwood The inside of a shark is full of curiosities, starting with rows of hardworking teeth that can be replaced by fresh ones ...

According to a new study, slowing the aging of your intestines may be vital to slowing overall aging. An experiment on zebrafish showed that if the aging of just that one organ was slowed through DNA ...

In 1920, Serbian-born inventor Nikola Tesla designed and patented what he called a “valvular conduit”: a pipe whose internal design ensures that a fluid will flow in one preferred direction, with no ...

Rodents and pigs share with certain aquatic organisms the ability to use their intestines for respiration, a new study finds. The researchers demonstrated that the delivery of oxygen gas or oxygenated ...

Researchers sheds light on a face-off in the intestines between the immune system and a bacterial pathogen whose family members cause gastrointestinal disease and the plague. The team's insights may ...

Chronic intestinal pseudo-obstruction (CIPO) affects the movement of food, fluid, air, and waste through the intestines. It can be genetic or develop due to another health condition. CIPO is a rare ...

Mesenteric artery ischemia is a condition that restricts blood flow to your intestines. Three main arteries, called the mesenteric arteries, supply blood to your small and large intestines. Narrowing ...

Pulsing movements in an embryo are crucial to helping intestines grow into the wonder tube that it is, a study finds. By Veronique Greenwood In the grayscale of a laboratory video, the little tubes ...

Inside the African clawed frog, intestines grow just like humans’: neatly coiled counterclockwise. Experiments now show how that process can go awry. Interfering with tadpoles’ metabolism leads to a ...

Sharks have spiral-shaped intestines that work in a similar way to an unusual valve designed by Nikola Tesla. Studying their anatomy could help improve industrial fluid-pump technology. Most animals ...